Hey Kim, thanks for your kind comment on my similar image :-)
To answer your question - I shot using the D800 in DX mode on a Sigma 300 f2.8 @f5.6 or thereabouts... Heavy lump to chuck around after fast moving aircraft :-)

Hey Kim, thanks for your kind comment on my similar image

To answer your question - I shot using the D800 in DX mode on a Sigma 300 f2.8 @f5.6 or thereabouts... Heavy lump to chuck around after fast moving aircraft